A Cause-Consequence Analysis (CCA) is a blend of the Fault Tree Analysis and Event Tree Analysis techniques that were discussed in the preceding sections. A major strength of a Cause-Consequence Analysis is its use as a communication tool. The cause-consequence diagram displays the relationships between the incident outcomes (consequences) and their basic causes. This technique is most commonly used when the failure logic of the analyzed incidents is rather simple, since the graphical form, which combines both fault trees and event trees on the same diagram, can become quite detailed.
Reference: CCPS: guidelines for hazard evaluation procedures, third edition